package com.jn.algorithm.other;

import java.util.ArrayList;
import java.util.Deque;
import java.util.LinkedList;

/**
 * @author 江南大学1033190417
 * @date 2022/5/14 20:13
 */
public class test {
    public static void main(String[] args) {
        ArrayList<Integer> list = new ArrayList<>();

    }
}
class A{
    static {
        System.out.println(1);
    }
    public A(){
        System.out.println(2);
    }
}

class B extends A{
    static {
        System.out.println("a");
    }
    public B(){
        System.out.println("b");
    }
}
